Ocean Diver Knowledge - OT5: What happens if? Question Title * 1. How can lung damage be incurred during an ascent? Please select all that apply. Ascending too fast Ascending too slowly breathing too quickly breathing too slowly holding your breath OK Question Title * 2. What are the signs and symptoms of decompression illness? Please select all that apply. Chest discomfort/pain voice change excessive laughter shortness of breath itches/rashes increased energy joint aches numbness/tingling visual disturbances dizziness nausea headaches confusion weakness/paralysis unconsciousness increased happiness OK Question Title * 3. What action should be taken if decompression illness is experienced? Please select all that apply. Provide oxygen provide painkillers and send straight home send to recompression chamber nothing required just rest OK Question Title * 4. What is likely to be experienced by a diver breathing from a contaminated breathing gas supply? Please select all that apply. Taste Diarrhoea Nausea Dizziness excess laughter Disorientation headache Unconsciousness happiness OK Question Title * 5. What action should be taken if nitrogen narcosis is experienced? Provide oxygen provide painkillers and send straight home send to recompression chamber nothing required just rest Ascend OK Question Title * 6. What are the signs and symptoms of acute oxygen toxicity? Please select all that apply. muscular twitching shortness of breath Nausea Dizziness convulsions headache Unconsciousness cold clammy skin OK Question Title * 7. In diving what is MOD Ministry of Defence Monitoring of Depth Maximum Operating Depth Minimum Operating Depth Maximum Optional Depth OK Question Title * 8. What is the MOD for a 32% Nitrox mix? 27m 30m 33m 36m OK Question Title * 9. Who should be informed if contaminated breathing gas is discovered? Please select all that apply. Police Dive Manager BSAC HQ Filling station Department for Health and Safety OK Question Title * 10. How would you rescue an unconscious diver from depth? use a controlled buoyant lift (CBL) removes cylinders and allow float to surface attach a line from surface and pull body to surface quickly place into position of recovery begin basic life support (BLS) immediately OK Question Title * 11. If you have completed the rescue of an unconscious buddy from depth, what should you do on reaching the surface? Please select all that apply. inflation of buddy's BC inflation of your own BC signal for help leave buddy at surface and continue dive release weights if necessary OK DONE